The answer is: Because he was a man of war

1 Chr 22:8

David, the fieriest king in Israel's history, had a heart fueled by adoration for God. He longed to build a grand temple, a fitting house for divine worship. However, he received the disappointing news that because he was a man of war, this dream wasn't to be! This is highlighted in 1 Chronicles 22:8, where God instructs that his son Solomon, a builder without the blood of battles on his hands, would achieve what David couldn't.

But what's so compelling about the distinction between David and Solomon? David, despite his warrior status, was also a deeply emotional leader known for his poetic psalms that reflect his passionate heart for God. The contrast can be seen beautifully in Solomon, whose wisdom initially brought peace and prosperity. Solomon's construction represents not just physical labor but spiritual achievements – a tangible symbol of connect by brick and mortar.

Interestingly, God’s choice reminds us that our roles don’t define our impact. David wanted to construct lasting sanctuary—Solomon actually did! It prompts us to ponder: how might we contribute to things larger than ourselves in our own ways, regardless of our past? Also worth noting is that David's preparation helped Solomon—we learn of the endearing bonds through generations and how support and legacy play vital parts in community building, even of the temple.

In the end, the story enriches our understanding of divine plans; sometimes, it’s not about the zeal to build but the preparations made in good faith.